Mastalus II of Amalfi
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Mastalus II (Italian: Mastalo) (died 958) was the first duke of Amalfi from 957 until his death.
He succeeded his father, John, as patricius in 953, when he was still a minor.[1] He came of age in 957 and was elected dux, raising him to equal rank with the Dukes of Gaeta and Naples. In the next year, he was assassinated[a] by Sergius of Musco Comite family on the Monte di Scala.